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UM2966
User manual
Getting started with the STEVAL-ASTRA1B multiconnectivity asset tracking
reference design based on STM32WB5MMG and STM32WL55JC
Introduction
The ASTRA platform (STEVAL-ASTRA1B) is a development kit and reference design that simplifies prototyping, testing and
evaluating advanced asset tracking applications such as livestock monitoring, fleet management, and logistics.
The kit consists of four boards (not available for separate sale): STEVAL-ASTRA1 (main board), STEVAL-ASTRA1SB (system
on board), STEVAL-ASTRA1BC (expansion board) and STEVAL-ASTRA1NA (flexible NFC antenna).
It comes with comprehensive software, firmware libraries, tools, battery, and plastic case. Thanks to its modular and optimized
design, it simplifies the development of tracking and monitoring innovative solutions.
The
STEVAL-ASTRA1B
is built around the
STM32WB5MMG
module and the
STM32WL55JC
SoC for short and long range
connectivity (BLE, LoRa, and 2.4 GHz and sub 1-GHz proprietary protocols).
ST25DV64K
for NFC connectivity is also available.
The on-board
STSAFE-A110
enhances security features.
The kit embeds a complete set of environmental and motion sensors (LIS2DTW12, LSM6DSO32X, HTS221, STTS22H,
LPS22HH). Moreover, the
Teseo-LIV3F
GNSS module provides outdoor positioning.
The power management, built around
ST1PS02
and STBC03, is optimized for long battery life.
Figure 1.
STEVAL-ASTRA1B development kit
UM2966 - Rev 1 - February 2022
www.st.com
For further information contact your local STMicroelectronics sales office.
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Page 1: Figure 1. Steval-Astra1B Development Kit
GNSS module provides outdoor positioning. The power management, built around ST1PS02 and STBC03, is optimized for long battery life. Figure 1. STEVAL-ASTRA1B development kit UM2966 - Rev 1 - February 2022 www.st.com For further information contact your local STMicroelectronics sales office. -
Page 2: Getting Started
SMA antenna • NFC antenna • Operating conditions: +5 to 35°C Kit components STEVAL-ASTRA1B is a development kit consists of three boards and a flexible NFC antenna (none of them available for separate sale): UM2966 - Rev 1 page 2/86... -
Page 3: Steval-Astra1Sb System On Board
STEVAL-ASTRA1B components and assembly 1.3.1 STEVAL-ASTRA1SB system on board 1.3.1.1 Architecture and pinout The system on board hosts long and short-range connectivity as well as security functionalities. Moreover, it embeds part of the power management circuitry. UM2966 - Rev 1 page 3/86... -
Page 4: Figure 3. Block Diagram Of The Steval-Astra1Sb System On Board
The PCB size is about 34 mm x 28 mm. It consists of six layers optimized for RF performance. The edge and the bottom side of the PCB include several pads. The main peripherals and functionalities are exposed on the 56 edge pins and completed by the 110 pins on the bottom side. UM2966 - Rev 1 page 4/86... -
Page 5: Figure 4. System On Board - Main Component Placement And Pinout
PCB. You can use a 0 ohm (0402 package) resistor or a tiny solder drop to close the jumpers, thus creating a shortcut between the selected STM32WB5MMG STM32WL55JC pins. Figure 5. Solder jumpers for remapping UM2966 - Rev 1 page 5/86... -
Page 6: Table 2. System On Board - Edge Pinout
WB_PE0 WB_PD9 WB_PC7 WB_PD11 WB_PA3 WB_PA2 WB_PC5 WB_PA0 WB_PA1 WB_PA15 WB_PD15 WB_PA5 WB_PA4 WB_PA6 WB_PB5 WB_PC1 V_REG_EN WB_PB9 WB_PB8 WB_PC11 WB_PB6 WB_PB7 WB_PE3 WB_PC4 WB_PD4 WB_PD5 WB_PA7 WB_PD7 WB_PD3 WB_PB10 WB_VDD_USB WB_PA12 WB_PA11 WB_PC13 UM2966 - Rev 1 page 6/86... -
Page 7: Table 3. System On Board - Bottom Pinout (From B1 To B68)
Table 3. System on board - bottom pinout (from B1 to B68) Function WB_PD0 WB_PD2 WB_PD8 WB_PH0 WB_PD10 WB_PB1 WB_PH1 WB_PD13 WB_PC12 WB_PE1 POWER GOOD WB_PB15 WL_PA3 WL_PA2 WL_PA1 WL_PB2 WL_PA11 WB_PD1 UM2966 - Rev 1 page 7/86... - Page 8 WB_PB4 WB_PB2 WB_PB13 WB_PE2 Not connected WB_VDD WB_GND WB_GND WB_PA14 WB_GND WB_PA10 WB_PB3 WB_PC3 Not connected Not connected Not connected WB_PB14 WL_PC1 WL_PC6 WL_PC0 WL_PB10 WL_PA7 WL_PA6 WL_PA4 Not connected Not connected Not connected UM2966 - Rev 1 page 8/86...
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Page 9: Table 4. System On Board - Bottom Pinout (From B69 To B110)
WL_PA13 SWDIO WL_PA14 SWCLK WL_PB3 WL_PA15 WL_RESET WL_PB6 WL_PB4 WL_PB5 WL_PA8 WL_PC2 Not connected WL_VDD WL_GND WL_GND WL_PA14 WL_GND WL_PB7 WL_PB3 WL_PB4 Not connected Not connected Not connected Not connected Not connected WL_PB15 WL_VDD WL_PH3 UM2966 - Rev 1 page 9/86... -
Page 10: Figure 6. Extended Debug Footprints And Supported Connectors
(V_REG_2) acting on the VOUT2_CTRL signal. The following figure shows the power management block diagram of the system on board. It also shows the edge and bottom pins that allow accessing the signals. UM2966 - Rev 1 page 10/86... -
Page 11: Steval-Astra1 Main Board
• the additional secure element (not mounted, hooked to STM32WL55JC for LoRa provisioning) The additional RGB LEDs are intended for future applications but not mounted in this version of the kit. UM2966 - Rev 1 page 11/86... -
Page 12: Figure 8. Main Board Block Diagram
UM2966 Kit components Figure 8. Main board block diagram UM2966 - Rev 1 page 12/86... -
Page 13: Figure 9. Main Board Component Placement (Top View)
User button Jumpers to program pin configuration (for STM32WB5MMG or STM32WL55JC) System on board Screw hole for board-to-board strengthening Screw hole for board-to-board strengthening Screw hole for board-to-board strengthening Teseo-LIV3F ST1PS02CQ GNSS antenna 43.3 mm UM2966 - Rev 1 page 13/86... -
Page 14: Figure 10. Main Board Component Placement (Bottom View)
MEMS sensor with the advantage of a consistent reduction in power consumption. LSM6DSO32X has a full-scale acceleration range of ±4/±8/±16/±32 g and an angular rate range of ±125/±250/±500/±1000/±2000 dps. The operating temperature range goes from -40°C +85°C. UM2966 - Rev 1 page 14/86... -
Page 15: Figure 11. Steval-Astra1B Sensor Schematic Diagram
2048 blocks of 4 bytes, which could be split into four flexible areas. ST25DV64K GPO pin (MEM_INT) provides data about incoming events, like RF field detection, RF activity in progress, or mailbox message availability. UM2966 - Rev 1 page 15/86... -
Page 16: Figure 12. Steval-Astra1 Nfc Tag Schematic Diagram
The temperature operating range goes from -40°C to 85°C. Teseo-LIV3F drives the RF front end, which ends with the patch antenna (AB0038.J100). Optionally, you can remove and replace the patch antenna with a microFL (AB0038.J101) or a SMA (AB0038.J102) connector. UM2966 - Rev 1 page 16/86... -
Page 17: Figure 13. Steval-Astra1 Gnss Schematic Diagram
STM32WL55JC firmware can be updated as well. On the top side of the main board, the three-pin jumper selectors are organized in three groups, according to their function: firmware upgrade/debugging, tracking, and extended functions. UM2966 - Rev 1 page 17/86... -
Page 18: Table 5. Configuration Map Of The Three-Pin Jumper Selectors
STM32WL55JC microcontroller as a jumper is connected between pins 2 and 3. USART_TX net is connected to the STM32WB5MMG microcontroller as a jumper is J407 Tracking connected between pins 1 and 2 (default setting). UM2966 - Rev 1 page 18/86... -
Page 19: Figure 15. Steval-Astra1 Jumper Configuration To Program Stm32Wb5Mmg
Warning: Leave the jumpers in their default position unless it is specifically requested in the official documentation. Figure 15. STEVAL-ASTRA1 jumper configuration to program STM32WB5MMG UM2966 - Rev 1 page 19/86... -
Page 20: Figure 16. Steval-Astra1 Jumper Configuration To Program Stm32Wl55Jc
The J503 connector (not mounted) allows using the BTN1 signal as antitampering when it is connected to a normally closed (NC) external switch. Moreover, it allows connecting a buzzer driven through a PWM signal (BUZZER) generated by the STM32WB5MMG PA1 GPIO. You can use this PA1 for debugging purposes. UM2966 - Rev 1 page 20/86... -
Page 21: Table 6. J503 Connector Pinout (Not Mounted)
MEM_INT signal, and the BTN2 signal. This network allows the microcontroller to receive an awakening signal generated by, at least, one of them. Figure 18. STEVAL-ASTRA1 wake-up network SB940 Wakeup network MEM_INT D902 BAT30F4 SB941 SENS_INT2 D903 BAT30F4 SB942 SENS_INT1 D904 BAT30F4 SB943 BTN2 D905 BAT30F4 WAKEUP UM2966 - Rev 1 page 21/86... -
Page 22: Figure 19. Bottom Pads
Moreover, you can use it to connect flat cables in order to drive remote sensors or devices. The pinout of this connector is designed for the application needs, but also for future developments. UM2966 - Rev 1 page 22/86... -
Page 23: Figure 20. 34-Pin Connector Pinout
(AB0038.J411) pins (3, 32, and 34) and the GNDs. The VCONN voltage can be supplied by using: • the expansion connector (AB0038.J411) pins (4 and 31) and the GNDs; • the strip line (AB0038.J421) if the solder bridge (AB0038.J411) is closed. UM2966 - Rev 1 page 23/86... -
Page 24: Figure 21. Supply Inputs
Finally, the main board allows monitoring V_CONN and V_BAT voltages. To avoid battery consumption when the system is off, the measurement of the battery voltage is subject to a pass transistor switch driven by the VBAT_MEAS_EN signal. UM2966 - Rev 1 page 24/86... -
Page 25: Steval-Astra1Bc Expansion Board
STBC03; • a connector for STLINK-V3MINI STM32WB5MMG STM32WL55JC programming and debugging; • two 34-pin expansion connectors; • an STMOD+ connector; • selector switches. Figure 23. Expansion board block diagram UM2966 - Rev 1 page 25/86... -
Page 26: Table 7. Selector Logic Levels
Moreover, it can be controlled through the reserved pins of the 34-pin expansion connector. Table 7. Selector logic levels Position Selection signal High level Firmware controlled Low level UM2966 - Rev 1 page 26/86... -
Page 27: Table 8. Stmod+ Supply Voltage Selections
However, the AB0058.SW400 selector allows addressing different voltages towards these pins as per the table below. Table 8. STMOD+ supply voltage selections Position Supply voltage VREG1 VREG2 VBAT VCONN UM2966 - Rev 1 page 27/86... -
Page 28: Table 9. Stdc14 Connector Pinout
It allows programming and debugging the two microcontrollers even if their supply voltage is less than 3 V. 1.3.3.3 Three-pin jumpers Some functions of the expansion connector are shared among the STMOD+ and the STDC14 connectors. UM2966 - Rev 1 page 28/86... -
Page 29: Table 10. Configuration Map Of The Three-Pin Jumper Selectors
J100 three-pin jumper of the expansion board in configuration 1-2 and the J422 three-pin jumper of the main board in configuration 3-4. By acting on the J405 three-pin jumper, you can drive the signal coming from the switch to the STM32WB5MMG or to the STM32WL55JC microcontroller. UM2966 - Rev 1 page 29/86... -
Page 30: Figure 29. Steval-Astra1Bc Default Jumper Configuration
(AB0058.J200); via the strip line connector (AB0058.J201); via the expansion connector (AB0038.J411) (pins 3, 32, and 34) and the GNDs. The VCONN voltage can be supplied via the USB Type-C™ connector. UM2966 - Rev 1 page 30/86... -
Page 31: Power Management Overall Circuit
The power management is designed for modularity, flexibility, and power consumption optimization. The power management circuit is made of components that are embedded in the three boards. The picture below shows the whole circuit. UM2966 - Rev 1 page 31/86... -
Page 32: Figure 31. Steval-Astra1B - Power Management Block Scheme
SB918 0R 2.2uH 1.2A V_REG_OUT VOUT R923 2.2uH 1.2A C901 22uF N.M. V_REG_OUT_2 SB941 VOUT2 VOUT2_CTRL D0_1_2 D0_1_2 D0_1_2 V_REG_EN R924 ST1PS02CQTR V_REG_EN R930 R921 C902 C903 C904 10uF 10uF 10uF WB_GND WB_GND_RF WL_GND UM2966 - Rev 1 page 32/86... -
Page 33: Figure 33. Main Board - Power Management Schematic
R310 ST1PS02CQTR R311 C301 C302 C303 R309 47uF 47uF 10uF N.M. SB308 0R N.M. SB305 VBAT R301 100K R308 0R Q300 VT6M1T2 SB306 VBAT_MEAS_EN R302 R307 5.6K 100K VBAT_MEAS R303 R305 0R N.M. R304 UM2966 - Rev 1 page 33/86... -
Page 34: Figure 34. Expansion Board - Power Management Schematic
STBC03_SYS DT_USB_DP TP208 BC_USB_DP DT_USB_DM STBC03_WAKE-UP BC_USB_DM TP209 R209 ST-LINK_SWITCH BC_ST-LINK_SWITCH STBC03_BATMS STBC03_BATMS_ADC TP210 DT_VBAT DT_VBAT STBC03_BATMS_EN R210 TP211 BC_VBAT DT_VBAT_NTC DT_VBAT_NTC J201 R211 DT_GND BC_VBAT_NTC DT_GND J200 78171-0003 Con1X3 Female 1.27mm DT_GND DT_GND UM2966 - Rev 1 page 34/86... -
Page 35: How To Use The Steval-Astra1B
Step 1. Connect the expansion board to the main board bottom side and tighten the screws. Step 2. Plug the battery. Step 3. Plug the SMA antenna. UM2966 - Rev 1 page 35/86... -
Page 36: Figure 37. Steval-Astra1B Kit Assembly
Figure 38. Plastic case assembly (1 of 2) Step 7. Insert the battery in the bottom part of the case and apply its cover. UM2966 - Rev 1 page 36/86... -
Page 37: How To Program The Kit
Connect the expansion board to the bottom side of the main board and tighten the screws. Step 2. Check the jumper configuration. Step 3. Connect the STLINK-V3MINI to the expansion connector through the STDC14 flat cable. UM2966 - Rev 1 page 37/86... -
Page 38: How To Power On The Kit And Run The Asset Tracking Application
(refer to the related user manual for further details). STEVAL-ASTRA1B can interact with: – STAssetTracking app; – STBLESensor app; – DSH-ASSETRACKING dashboard. UM2966 - Rev 1 page 38/86... -
Page 39: Schematic Diagrams
Schematic diagrams Figure 42. Main board (STEVAL-ASTRA1) circuit schematic (1 of 9) WL_STSAFE INTERFACE SB940 VDD_STSAFE WL_STSAFE_RST STSAFE_RST MEM_INT VBAT VBAT V_UNREG WL_STSAFE_SCL D902 BAT30F4 V_UNREG STSAFE_SCL SB941 VCONN WL_STSAFE_SDA VCONN J901 STSAFE_SDA SENS_INT2 WB_SWCLK WB_SWCLK WB_SWDIO D903 BAT30F4 WB_SWDIO APP_STSAFE WB_RESET V_REG_2_SOB... -
Page 40: Figure 43. Main Board (Steval-Astra1) Circuit Schematic (2 Of 9)
Figure 43. Main board (STEVAL-ASTRA1) circuit schematic (2 of 9) B[1..110] TPB263 TPB264 TPB265 TPB266 TPB267 TPB268 TPB269 TPB270 TPB271 TPB272 TPB273 E[1..56] E[1..56] PIN 56 PIN 1 E1_WB_GND_RF E56_WL_GND0 TPE700 TPE701 E2_WL_RESET E55_V_UNREG TPE702 TPE703 E3_WL_PA14_SWCLK E54_V_REG TPB274 TPB275 TPB276 TPB277 TPB278... -
Page 41: Figure 44. Main Board (Steval-Astra1) Circuit Schematic (3 Of 9)
Figure 44. Main board (STEVAL-ASTRA1) circuit schematic (3 of 9) SB100 0R VDD_GNSS U100 VDD_GNSS SB101 0R LIV3_RSTn GND_RF_10 SYS_RSTn L100 R100 0R RF_IN SB102 0R RF_IN 27nF LIV3_RX R101 0R LIV3_RX C100 C101 SB103 0R GND_RF_12 VCC_IO 56pF 10nF LIV3_TX R102 0R LIV3_TX... -
Page 42: Figure 45. Main Board (Steval-Astra1) Circuit Schematic (4 Of 9)
Figure 45. Main board (STEVAL-ASTRA1) circuit schematic (4 of 9) N.M. J502 SOLDER JUMPER3 VCONN VCONN VDD_HMI V_UNREG V_UNREG V_UNREG V_UNREG VDD_HMI VDD_HMI VDD_HMI VDD_HMI D502 R500 0R SW500 Switch R501 0R LED_R LED_R R504 0R BTN1 LED_G LED_G LED_B LED_B R502 Led_RGB... -
Page 43: Figure 46. Main Board (Steval-Astra1) Circuit Schematic (5 Of 9)
Figure 46. Main board (STEVAL-ASTRA1) circuit schematic (5 of 9) J400 CON 3 Strip 1.27 VBAT VBAT J423 WL_SWDIO Jumper-Female SWDIO WB_SWDIO STPS1L30MF VBAT_NTC VBAT_NTC D402 J404 CON 3 Strip 1.27 J401 J402 J424 WL_SWCLK 78171-0003 Con3_Strip_Male_1.27 Q400 Jumper-Female SWCLK STL4P3LLH6 WB_SWCLK VCONN... -
Page 44: Figure 47. Main Board (Steval-Astra1) Circuit Schematic (6 Of 9)
Figure 47. Main board (STEVAL-ASTRA1) circuit schematic (6 of 9) SB601 VDD_MEM VDD_MEM C600 C601 100nF 100nF MEM_INT MEM_I2C_SCL MEM_I2C_SDA TP600 TP601 U600 J600 R600 V_EH VDCG SB600 0R Ant enna Con 4X0.5mm FFC-FPC ST25DV64K-JFR6D3... -
Page 45: Figure 48. Main Board (Steval-Astra1) Circuit Schematic (7 Of 9)
Figure 48. Main board (STEVAL-ASTRA1) circuit schematic (7 of 9) VBAT VBAT V_UNREG V_UNREG U300 VBAT_MEAS R300 SB300 0R VBAT_MEAS VDD_EN PGOOD VBAT_MEAS_EN L300 VBAT_MEAS_EN PI f i l t er SB301 V_UNREG VDD_EN L301 VDD_EN SB302 2.2uH VDD_AUX_EN VDD_AUX_EN VOUT SB303 2.2uH... -
Page 46: Figure 49. Main Board (Steval-Astra1) Circuit Schematic (8 Of 9)
Figure 49. Main board (STEVAL-ASTRA1) circuit schematic (8 of 9) SB200 0R LIS2DTW12_VDD LIS2DTW12_INT1 SENS_INT1 SB202 LIS2DTW12_INT2 LIS2DTW12_VDD VDD_SENSORS_PRIMARY VDD_SENSORS_PRIMARY R200 SB201 0R N.M. SB203 INTERNAL_VDD VDD_SENSORS VDD_SENSORS U200 LIS2DTW12_VDD VDDIO SB204 0R SENS_SPI_CLK SCL/SPC SENS_I2C_SCL SENS_I2C_SCL C200 C205 SB205 0R SENS_SPI_CS 100nF 100nF... -
Page 47: Figure 50. Main Board (Steval-Astra1) Circuit Schematic (9 Of 9)
The system on board mounts two specific microcontrollers with a “U” marking option at the end of the commercial part number (STM32WB5MMGH6UTR and STM32WL55JCI7U). This “U” marking option enables the operation of specific bundled commercial stack/library provided by ST. STM32WB5MMGH6UTR and STM32WL55JCI7U are not available for sale. The related commercial part numbers sold by ST are STM32WB5MMGH6TR and STM32WL55JCI7. -
Page 48: Figure 52. System On Board (Steval-Astra1Sb) Circuit Schematic (2 Of 10)
V_REG_2 V_REG_2 SobPins WB_VDD W B_VDD WB_VDD_USB + remapping options W B_VDD_USB WB_GND W B_GND WB_GND_RF W B_GND_RF WL_VDD W L_VDD WL_GND ST-SAFE W L_GND D0_1_2_CTRL D0_1_2 V_REG_EN V_REG_2 V_REG_EN VDD_STSAFE STSAFE_SCL STSAFE_SCL STSAFE_SDA STSAFE_SDA STSAFE_RST STSAFE_RST STM32WB pins SobST-SAFE... -
Page 49: Figure 53. System On Board (Steval-Astra1Sb) Circuit Schematic (3 Of 10)
Figure 53. System on board (STEVAL-ASTRA1SB) circuit schematic (3 of 10) E[1..56] B[1..110] STM32WB V_UNREG WB_PA0 WB_PB0 WB_PC0 WB_PD0 WB_PE0 V_REG WB_PA1 WB_PB1 WB_PC1 WB_PD1 WB_PE1 V_REG_2 WB_PA2 WB_PB2 WB_PC2 WB_PD2 WB_PE2 D0_1_2 WB_PA3 WB_PB3 WB_PC3 WB_PD3 WB_PE3 V_REG_EN B100 WB_PA4 WB_PB4 WB_PC4... -
Page 50: Figure 54. System On Board (Steval-Astra1Sb) Circuit Schematic (4 Of 10)
Figure 54. System on board (STEVAL-ASTRA1SB) circuit schematic (4 of 10) TPB900 TPB901 TPB902 TPB903 TPB904 TPB905 TPB906 TPB907 TPB908 TPB909 TPB910 PI N 1 PI N 11 B[1..110] E[1..56] PI N 1 TPE902 PI N 12 PI N 22 TPB918 TPB911 TPB912... -
Page 51: Figure 55. System On Board (Steval-Astra1Sb) Circuit Schematic (5 Of 10)
Figure 55. System on board (STEVAL-ASTRA1SB) circuit schematic (5 of 10) V_UNREG_HMI V_UNREG_HMI J937 V_REG_HMI V_REG_HMI SOLDER JUMPER3 LED_R LED_R V_REG_HMI V_UNREG_HMI LED_G LED_G D902 LED_B R914 0R LED_B R915 0R R916 0R Led_RGB LED_R LED_G R919 R917 R918 LED_B 2SCR522MT2L 120k VT6X1T2R... -
Page 52: Figure 57. System On Board (Steval-Astra1Sb) Circuit Schematic (7 Of 10)
Figure 57. System on board (STEVAL-ASTRA1SB) circuit schematic (7 of 10) SB940 0R VDD_STSAFE R902 R903 STSAFE_SCL STSAFE_SDA STSAFE_RST U901 RESET C905 100nF STSAFA110DFSPL02... -
Page 53: Figure 58. System On Board (Steval-Astra1Sb) Circuit Schematic (8 Of 10)
Figure 58. System on board (STEVAL-ASTRA1SB) circuit schematic (8 of 10) WB_RESET1 C906 100nF WB_GND_RF U902 STM32WB5MMGH6UTR WB_PA0_WKUP WB_PC0_I2C3_SCL WB_PA1_TIM2CH2 WB_PC1_ADC WB_PB0_GPIO WB_PA2_LPUART1_TX WB_PB1_GPIO WB_PC2_SPI2_MISO WB_PA3_LPUART1_RX WB_PC3_ADC WB_PA4_SPI1_CS WB_PC4_EXTI C907 C908 WB_PA5_SPI1_SCK WB_PC5_ADC WB_PA6_SPI1_MISO WB_PC6_EXTI WB_PA7_QUADSPI_BK1_IO2 WB_PC7_EXTI WB_PA8_MCO WB_PC8_WL_WKUP WB_PA9_USART1_TX WB_PC9_WL_EXTI WB_PA10_USART1_RX WB_PC10_WL_RESET... -
Page 54: Figure 59. System On Board (Steval-Astra1Sb) Circuit Schematic (9 Of 10)
Figure 59. System on board (STEVAL-ASTRA1SB) circuit schematic (9 of 10) WL_VDD_SYS WL_VDD WL_VDD_APP WL_VDD_APP WL_VDD_MCU WL_VDD_SYS SB922 VDD_RF VDD_RF SB923 SB924 C919 VDDRF1V55 VDDRF1V55 100nF WL_VDD_SYS L902 VDDPA VDDPA WL_VDD_APP VDD_RF VDDRF1V55 VDDSMPS SB925 VDDRF VDDRF SB927 SB926 600Ohm@100MHz VDDSMPS VDDSMPS VDDPA... -
Page 55: Figure 60. System On Board (Steval-Astra1Sb) Circuit Schematic (10 Of 10)
Figure 60. System on board (STEVAL-ASTRA1SB) circuit schematic (10 of 10) VLXSMPS RFO_HP RFO_HP WL_VDD_APP WL_VDD_APP STM32WL RF PB0_VDD_TCXO VDDRF VDDPA VDDRF1V55 RFO_LP RFO_LP VDD_RF VDD_RF R905 RFI_P RFI_P VDDRF1V55 VDDRF1V55 VDDSMPS VDD_RF VDDRF WL_VDD_APP RFI_N RFI_N VDDPA VDDPA TP900 C931 C932 C933... -
Page 56: Figure 61. Expansion Board (Steval-Astra1Bc) Circuit Schematic (1 Of 5)
Figure 61. Expansion board (STEVAL-ASTRA1BC) circuit schematic (1 of 5) BATTERY_CHARGER ST_LINK_INTERFACE VREG2 BC_VDD_LDO STLINK_VDD_LDO BC_ST-LINK_SWITCH STLINK_SWITCH STLINK_SWCLK STLINK_SWCLK BC_VDD_USB VREG1 STLINK_SWDIO EXPANSION_CONNECTOR STLINK_SWDIO STLINK_VDD_MCU VBAT VBAT STLINK_RESET STLINK_RESET BC_VBAT EXC_VBAT VREG1 STLINK_T_VCP_RX BC_VBAT_NTC EXC_BAT_NTC EXC_VREG1 STLINK_T_VCP_RX STLINK_T_VCP_TX BC_USB_DP EXC_USB_DP STLINK_T_VCP_TX VREG2 BC_USB_DM... -
Page 57: Figure 62. Expansion Board (Steval-Astra1Bc) Circuit Schematic (2 Of 5)
ZDi f f DT_GND VBUS_CTRL DT_GND 90 Ohm 90 Ohm STBC03_WAKE-UP DT_USB_DP FLT/ DT_USB_DM R208 CC1c RV3CA01ZP CC1c DT_GND CC2c CC2c STBC03_SW1_OA ST-LINK_SWITCH TP200 TP201 DT_GND DT_VDD_LDO STBC03_SW1_OB STBC03_nCHG TP202 TP203 U201 BC_VDD_LDO TCPP01_M12 STBC03_SW2_OA STBC03_CEN TP204 TP205 DT_VDD_USB STBC03_SW2_OB... -
Page 58: Figure 63. Expansion Board (Steval-Astra1Bc) Circuit Schematic (3 Of 5)
TP304 TPD 4.7k 4.7k 4.7k 4.7k 4.7k U300 TP305 LSF0108PWR T_VCP_TX_LS T_VCP_RX_LS T_SWCLK_LS T_SWDIO_LS T_NRST_LS STLINK_VDD_LDO STLINK_VDD_LDO STLINK_VDD_MCU J300 STLINK_VDD_LDO STLINK_VDD_MCU T_SWDIO_LS STLINK_SWITCH T_SWCLK_LS T_VCP_RX STLINK_T_VCP_RX T_VCP_TX T_NRST_LS STLINK_T_VCP_TX T_VCP_RX_LS T_VCP_TX_LS T_NRST STLINK_RESET Con14-male T_SWDIO STLINK_SWDIO T_SWCLK STLINK_SWCLK ST-LINK_SWITCH STLINK_SWITCH... -
Page 59: Figure 64. Expansion Board (Steval-Astra1Bc) Circuit Schematic (4 Of 5)
Figure 64. Expansion board (STEVAL-ASTRA1BC) circuit schematic (4 of 5) R400 GPIO4 U400 STMOD_VDD STG3692 R401 GPIO3 1-2_SEL 1-2SEL SPIx_SCK SPI_SCK/UART_RTS R402 J400 UARTy_RTS GPIO2 SPIx_NSS SPI_NSS/UART_CTS STMOD_GPIO4 I2Cz_SDA R405 UARTy_CTS R403 STMOD_GPIO3 SPIx_MISOs 3-4_SEL STMOD_GPIO2 SPIx_MOSIs GPIO1 3-4SEL SPIx_MOSIp SPI_MOSIp/UART_TX STMOD_GPIO1 I2Cz_SCL... -
Page 60: Figure 65. Expansion Board (Steval-Astra1Bc) Circuit Schematic (5 Of 5)
Figure 65. Expansion board (STEVAL-ASTRA1BC) circuit schematic (5 of 5) R501 0R N.M. EXC_SPIx_MISOs EXC_I2Cz_SCL EXC_SPIx_MISOs EXC_I2Cz_SCL EXC_GPIO4 EXC_SPIx_SCK EXC_GPIO4 EXC_SPIx_SCK EXC_GPIO3 EXC_SPIx_MISOp EXC_GPIO3 EXC_SPIx_MISOp J500 EXC_GPIO2 EXC_SPIx_MOSIp EXC_GPIO2 EXC_SPIx_MOSIp EXC_BAT_NTC EXC_GPIO1 EXC_SPIx_NSS EXC_VBAT EXC_VCONN EXC_GPIO1 EXC_SPIx_NSS EXC_SPIx_MISOs EXC_VREG2 EXC_USB_DM EXC_GPIO4 EXC_I2Cz_SCL EXC_RES1... -
Page 61: Figure 66. Flexible Nfc Antenna (Steval-Astra1Na) Circuit Schematic
Figure 66. Flexible NFC antenna (STEVAL-ASTRA1NA) circuit schematic N.M. Strip male 2X1 pitch 1.27 N.M. Printed contacts N.M. N.M. N.M. Printed contacts... -
Page 62: Bill Of Materials
C203 C204 C205 100 nF SMD Ceramic Murata C206 C500 C501 0201 10 V 20% GRM033R61A104ME15D capacitors Electronics C503 C600 C601 C800 10 µF 0603 (1608 Metric) Ceramic C300 C303 C1608X5R0J106M080AB 6.3 V ±20% capacitors Corporation UM2966 - Rev 1 page 62/86... - Page 63 0 R 0603 1/10 J409 J410 Resistors Vishay CRCW06030000Z0EB W ±1% SMD CON34-Socket Connector Panasonic J411 AXF5G3412A 34 positions socket Electric Works con1-strip-male 50 Pitch 90 Connector J421 Harwin Inc. M50-3930242 1.27 mm 2 header positions UM2966 - Rev 1 page 63/86...
- Page 64 RV3C002UN 3- XFDFN 100 Rohm Q501 Q504 Q505 mW (Ta) 20 V NCH MOSFET RV3C002UNT2CL Semiconductor 150 MA SM SIG VML VT6X1T2R VMT-6 BJT TR Bipolar Rohm Q502 VT6X1T2R NPNX2 20V transistor Semiconductor VCEO UM2966 - Rev 1 page 64/86...
- Page 65 1/20W ±1% 120 k 0201 Panasonic R510 Resistor ERJ-1GNF1203C 1/20 W ±1% Electronic 51 k 0201 1/20 Panasonic R511 Resistor ERJ-1GEF5102C W ±1% Electronic Würth S1 S2 S3 Spacer_1.5 mm RND standoff 9774015243R Elektronik UM2966 - Rev 1 page 65/86...
- Page 66 Not mounted TPB253 TPB254 TPB255 TPB256 TPB257 TPB258 TPB259 TPB260 TPB261 TPB262 TPB263 TPB264 TPB265 TPB266 TPB267 TPB268 TPB269 TPB270 TPB271 TPB272 TPB273 TPB274 TPB275 TPB276 TPB277 TPB278 TPB279 TPB280 TPB281 TPB282 TPB283 TPB284 UM2966 - Rev 1 page 66/86...
- Page 67 Low-voltage, ultra-low-power, STTS22HTR 0.5°C accuracy U201 UDFN 2X2X.55 STTS22HTR I²C/SMBus 3.0 6L PITCH 0.65 temperature sensor iNEMO inertial LSM6DSO32X module: VFLGA2.5X3X. always-on 3D U202 LSM6DSO32XTR 86 14L P.5 accelerometer L.475X.25 and 3D gyroscope UM2966 - Rev 1 page 67/86...
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Page 68: Table 13. Steval-Astra1Sb Bill Of Materials
(STM32WB5MMGH6UTR and STM32WL55JCI7U). This “U” marking option enables the operation of specific bundled commercial stack/library provided by ST. STM32WB5MMGH6UTR and STM32WL55JCI7U are not available for sale. The related commercial part numbers sold by ST are STM32WB5MMGH6TR and STM32WL55JCI7. - Page 69 ±10% X7RSMD capacitors Electronics 2.2 pF 0402 Ceramic Murata C942 (1005 Metric) GJM1555C1H2R2WB01D capacitor Electronics 50 V 0.05 pF 1.5 pF 0402 (1005 Metric) Ceramic Murata C949 GJM1555C1H1R5WB01D 50 V 0.05 pF capacitor Electronics UM2966 - Rev 1 page 69/86...
- Page 70 CSP general (0603 Metric) D900 D901 purpose small BAT30F4 300 mA signal Schottky ST0201 diode Led_RGB 0404 (1010 Metric) 5 mA red, 5 mA Full-color chip Würth D902 150044M155260 green, 5 mA Elektronik blue WL-SFCC UM2966 - Rev 1 page 70/86...
- Page 71 Inductor LQW15AN3N0C80D Electronics 1.35 A SMD 8.7 nH 0402 Murata L906 L910 L913 (1005 Metric) Inductors LQW15AN8N7G80D Electronics 1.42 A ±2% 2.5 nH 0402 Murata L911 (1005 Metric) 1 Inductor LQW15AN2N5B80D Electronics A SMD UM2966 - Rev 1 page 71/86...
- Page 72 RC0201FR-071ML W ±1% mounted) 82 R 0201 1/20 Panasonic R927 Resistor ERJ-1GNJ820C W ±5% Electronics SB903 SB915 SB916 SB920 0 R 0201 1/20 Resistor (not Stackpole RMCF0201ZT0R00 SB921 SB930 W ±1% mounted) Electronics SB932 UM2966 - Rev 1 page 72/86...
- Page 73 TPE910 TPE911 TPE912 TPE913 Test points (not TPE914 TPE915 mounted) TPE916 TPE917 TPE918 TPE919 TPE920 TPE921 TPE922 TPE923 TPE924 TPE925 TPE926 TPE927 TPE928 TPE930 TPE932 TPE934 TPE936 TPE943 TPE944 TPE945 TPE946 TPE947 TPE948 TPE949 UM2966 - Rev 1 page 73/86...
- Page 74 IC RF switch BGS13SN8E6327XTSA1 Technologies TSNP8-1 32.768 kHz 2- NDK America, NX2012SA-32.768KHZ- Y900 Crystal SMD, no lead Inc. EXS00A-MU00527 XTAL OSC 32 MHz 4- VCTCXO NDK America, NT2016SA-32M- Y901 SMD, no lead 32.0000 MHZ Inc. END4263A UM2966 - Rev 1 page 74/86...
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Page 75: Table 14. Steval-Astra1Bc Bill Of Materials
J100 J101 J102 Connector le_SMD SMD Connector GRPB031VWTC-RC J103 J104 headers 3POS 1.27 mm Solutions Connector Würth J105 con4-strip-male header (not 61300411121 Elektronik mounted) con2-strip- Connector J106 Harwin Inc. M50-3030242 female 50 pitch receptacle UM2966 - Rev 1 page 75/86... - Page 76 Metric) 0.1 W, Resistor Yageo RC0603FR-071KL 1/10 W ±1% 20 K 0603 (1608 Metric) Panasonic R207 Chip resistor ERA-3AEB203V 0.1 W, 1/10 W Electronic ±1%SMD 20 k 0201 1/20 R208 Resistor Yageo RC0201FR-0720KL W ±1% UM2966 - Rev 1 page 76/86...
- Page 77 TP302 TP303 TP304 TP305 STBC03JR Li-Ion linear chip scale battery charger U200 STBC03JR package 0.4 with LDO and mm pitch load switches Overvoltage TCPP01-M12 protection for U201 TCPP01-M12 QFN-12L USB Type-C or Power Delivery UM2966 - Rev 1 page 77/86...
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Page 78: Table 15. Steval-Astra1Na Bill Of Materials
Item Q.ty Ref. Part/value Description Manufacturer Order code J1, J2 N.M. Printed contacts Printed contacts (not mounted) J3 N.M. Strip male 2X1 pitch 1.27 Jumper (not mounted) P1, P2 N.M. Passive components (not mounted) UM2966 - Rev 1 page 78/86... -
Page 79: Kit Versions
STEVAL$ASTRA1A, the STEVAL-ASTRA1SB system on board, whose version is identified by the code STEVAL$ASTRA1SBA, the STEVAL-ASTRA1BC expansion board, whose version is identified by the code STEVAL$ASTRA1BCA and the STEVAL-ASTRA1NA flexible NFC antenna, whose version is identified by the code STEVAL$ASTRA1NAA. UM2966 - Rev 1 page 79/86... -
Page 80: Regulatory Compliance Information
Formal product notice required by EU The STEVAL-ASTRA1B kit is in conformity with the essential requirements of the Directive 2014/53/EU (RED) and of the Directive 2015/863/EU (RoHS). Harmonized standards applied are listed in the EU Declaration of Conformity. UM2966 - Rev 1 page 80/86... -
Page 81: Revision History
UM2966 Revision history Table 17. Document revision history Date Revision Changes 17-Feb-2022 Initial release. UM2966 - Rev 1 page 81/86... -
Page 82: Table Of Contents
List of figures................84 UM2966 - Rev 1... -
Page 83: List Of Tables
Document revision history ............. 81 UM2966 - Rev 1... -
Page 84: List Of Figures
System on board (STEVAL-ASTRA1SB) circuit schematic (3 of 10) ....... 49 UM2966 - Rev 1... - Page 85 Flexible NFC antenna (STEVAL-ASTRA1NA) circuit schematic........61 UM2966 - Rev 1...
- Page 86 ST’s terms and conditions of sale in place at the time of order acknowledgement. Purchasers are solely responsible for the choice, selection, and use of ST products and ST assumes no liability for application assistance or the design of Purchasers’...
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